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BUF_ISLOCKED(9) FreeBSD Kernel Developer's Manual BUF_ISLOCKED(9)
NAMEBUF_ISLOCKED -- returns the state of the lock linked to the buffer
SYNOPSIS#include <sys/param.h>
#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/bio.h>
#include <sys/buf.h>
intBUF_ISLOCKED(structbuf*bp);
DESCRIPTION
The BUF_ISLOCKED() function returns the status of the lock linked to the
buffer in relation to curthread.
It can return:
LK_EXCLUSIVE An exclusive lock is held by curthread.
LK_EXCLOTHER An exclusive lock is held by someone other than curthread.
LK_SHARED A shared lock is held.
0 The lock is not held by anyone.
SEE ALSOlockstatus(9), buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)AUTHORS
This manual page was written by Attilio Rao <attilio@FreeBSD.org>.
FreeBSD 10.1 January 22, 2008 FreeBSD 10.1